Re: [RFC 2/2] Introduce sysctl(s) for the migration costs

[Mike Galbraith]

On Thu, 2018-02-08 at 14:19 -0800, Rohit Jain wrote:
> This patch introduces the sysctl for sched_domain based migration costs.
> These in turn can be used for performance tuning of workloads.

With this patch, we trade 1 completely bogus constant (cost is really
highly variable) for 3, twiddling of which has zero effect unless you
trigger a domain rebuild afterward, which is neither mentioned in the
changelog, nor documented.

bogo-numbers++ is kinda hard to love.

	-Mike